The utility model provides a soft sealing type high-pressure
ball valve which comprises a main body, an air inlet and an expansion
pipe, an adjusting knob is arranged on the top of the main body, an air outlet is formed in the rear side of the main body, the air inlet is formed in the front side of the main body, and the expansion
pipe is arranged on the front side of the air inlet. Compared with the prior art, the device has the advantages that by arranging the flow collecting cover, the rotating base, the rotating wheel and the
brush, high-pressure gas entering the flow collecting cover is collected and blown to the rotating wheel, so that the rotating wheel is driven to rotate, the
brush is driven to
brush the inner wall of the expansion
pipe,
impurity particles are prevented from being adsorbed on the inner wall of the expansion pipe, and the expansion pipe is prevented from being blocked; by arranging the flow slowing plate, the flow speed of high-pressure and high-temperature gas can be reduced, the speed and flow of the gas entering the main body are slowed down, the situation that the
working pressure of the main body is increased due to too large pressure, and gas leakage is caused is prevented, by arranging the first threaded connecting pipe, the first screwing hole, the second threaded connecting pipe and the second screwing hole, the expansion pipe can be detached, and maintenance and cleaning are convenient; the working efficiency is improved.